My recommendation: BIGTREA PREMIUM. Recently ordered, it is pretty good quality. Give it a try. They also have lab test available for all the batches, and you can choose from 3 strength. Not the cheapest, but at least good quality.

Saw this on a page of my vendor. Sounded promising so i tried it... It is very intense, altough i bought the 1,7% version. I can definitely recommend this to everyone who wants to see a lab test also. Thumps up for this product.